Research Article
Soil Chemical Properties under Various Land-Use Types in the Karst Area with a Case Study in Shibing County of China
Table 4
Nutrient coefficient of variations of soil in upper and lower layers of different land-use types (100%).
| Land-use type | pH | TN | AN | TP | AP | TK | AK | SOC |
| Paddy land | 1.3063 | 88.0252 | 35.4247 | 30.8045 | 23.2630 | 1.4408 | 27.1489 | 98.1107 | Dryland | 0.7443 | 7.4629 | 3.5785 | 18.3463 | 18.6740 | 5.5550 | 10.1032 | 16.6993 | Flue-cured tobacco field | 1.9207 | 34.4907 | 9.2965 | 15.0026 | 32.1052 | 1.8664 | 53.3061 | 53.2346 | Orchard | 0.7697 | 10.2500 | 27.2679 | 24.2224 | 58.1915 | 4.8319 | 38.0324 | 18.0483 |
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